- chemical sign
- (chim) simbol chimic
English-Romanian technical dictionary. 2013.
English-Romanian technical dictionary. 2013.
Chemical thermodynamics — is the study of the interrelation of heat and work with chemical reactions or with physical changes of state within the confines of the laws of thermodynamics. Chemical thermodynamics involves not only laboratory measurements of various… … Wikipedia
chemical bonding — ▪ chemistry Introduction any of the interactions that account for the association of atoms into molecules, ions, crystals, and other stable species that make up the familiar substances of the everyday world. When atoms approach one another … Universalium
Chemical reaction — Chemical reactions redirects here. For the 2007 television episode, see Chemical Reactions (Men in Trees). A thermite reaction using iron(III) oxide. The sparks … Wikipedia
Chemical Weapons Convention — ▪ 1993, UN Introduction formally Convention on the Prohibition of the Development, Production, Stockpiling and Use of Chemical Weapons and on Their Destruction international treaty that bans the use of chemical weapons (chemical weapon)… … Universalium
Chemical Bank — This article is about the former bank headquartered in New York. For Chemical Bank in Michigan, see Chemical Financial Corporation. Chemical Bank Chemical Bank s logo from after their 1991 acquisition of Manufacturers Hanover until its purchase… … Wikipedia
Chemical weapon proliferation — Nation CW Possession Signed CWC Ratified CWC Albania Known January 14, 1993 May 11, 1994 Burma (Myanmar) Possible January 13, 1993 No … Wikipedia
chemical reaction — Any chemical process in which substances are changed into different ones, with different properties, as distinct from changing position or form (phase). Chemical reactions involve the rupture or rearrangement of the bonds holding atoms together… … Universalium
Chemical equation — A chemical equation is the symbolic representation of a chemical reaction where the reactant entities are given on the left hand side and the product entities on the right hand side.[1] The coefficients next to the symbols and formulae of… … Wikipedia
Chemical safety signs — In our everyday, we use chemicals for a variety of our jobs. This includes work at office work and also household work as well. Even when it comes to bathroom cleaning or polishing our kitchen tiles we are using chemicals. This is the reason that … Wikipedia
chemical indicator — any substance that gives a visible sign, usually by a colour change, of the presence or absence of a threshold concentration of a chemical species, such as an acid or an alkali in a solution. An example is the substance called methyl yellow … Universalium
Numerical sign problem — The numerical sign problem refers to the difficulty of numerically evaluating the integral of a highly oscillatory function of a large number of variables. Numerical methods fail because of the near cancellation of the positive and negative… … Wikipedia